scholarly journals Keanekaragaman Plankton pada Kolam Bioflok

2020 ◽  
Vol 6 (1) ◽  
pp. 82-88
Author(s):  
Yulan Hardias Putri ◽  
Hari Santoso ◽  
Ahmad Syauqi

Aquatic fertility in biofloc ponds is very dependent on the presence of plankton, an organism that lives floating in aquatic ponds and plays an important role as a source of natural food. This research aim to analyze the abundance and diversity of plankton in biofloc pools fed with probiotics. This study uses survey methods in the form of observations, measurement of water parameters, plankton sampling in biofloc ponds that have been given probiotic treatment at a dose that has been determined by the farmer at a depth of 1m biofloc pool with a diameter of 2m. The statistical analyzed used is the T test to diversity differences in plankton abundance between morning, afternoon and evening. The results obtained as many as 10 genus of phytoplankton and 26 genus of phytoplankton, namely Class 6 Cyanophyceae genus including Synechococcus, Oscilatoria, Choococcus, Spirulina, Microcystis, Scytonema. Chlorophyceae class 6 genus namely Haematococcus, Chlorella, Stigeoclonium, Calodophora, Tetraedon, Pyrobotrys. Bacillariophyceae class 5 genus namely Navicula, Eunotia, Cartuicula, Melosira, Rhaicosphera. Class Trebouxiophyceae 2 genus namely Botryococcus, Dictyosphaerium. The genus Euglenoidea 1 is Euglena. Cryptophyceae class 1 genus is Rhodomonas. Class Charophyceae 2 genus Mougeotia and Cryptomonas. The Zygnematophyceae class contains the Closterium genus. The Cyanophyta class contains the Anacystis genus. The Chrysophyceae class contains Dinobryon genus. From the identification results found Zooplankton with 3 classes and 3 genus namely Branchiopoda class, namely the Holopedium genus. The Maxillopoda class is the Copepoda genus. The Monogononta class is the Ascomorpha genus. The statistical test results showed that the diversity in each test was significantly different. Keywords: Plankton, Probiotics, Biofloc ABSTRAK Kesuburan perairan di kolam bioflok sangat tergantung pada keberadaan plankton yang merupakan organisme yang hidup melayang di kolam perairan dan berperan penting sebagai sumber pakan alami. Penelitian ini bertujuan untuk menganalisa kelimpahan dan keragaman plankton di kolam bioflok yang diberi probiotik. Penelitian ini menggunakan metode survei berupa pengamatan, pengukuran parameter air, pengambilan sampel plankton pada kolam bioflok yang sudah di beri perlakuan probiotik dengan dosis yang telah di tentukan oleh petani tambak pada kedalaman kolam bioflok 1m dengan diameter 2m. Analisis statistik yang digunakan adalah uji-T untuk mengetahui perbedaan keanekaragaman plankton antara pagi, siang dan sore hari. Hasil penelitian mendapatkan fitoplankton sebanyak 10 kelas dan 26 genus fitoplankton, yaitu Kelas Cyanophyceae 6 genus meliputi Synechococcus, Oscilatoria, Choococcus, Spirulina, Microcystis, Scytonema. Kelas Chlorophyceae 6 genus yaitu Haematococcus, Chlorella, Stigeoclonium, Calodophora, Tetraedon, Pyrobotrys. Kelas Bacillariophyceae 5 genus yaitu Navicula, Eunotia, Cartuicula, Melosira, Rhaicosphera. Kelas Trebouxiophyceae 2 genus yaitu Botryococcus, Dictyosphaerium. Kelas Euglenoidea 1 genus yaitu Euglena. Kelas Cryptophyceae 1 genus yaitu Rhodomonas. Kelas Charophyceae 2 genus Mougeotia dan Cryptomonas. Kelas Zygnematophyceae terdapat genus Closterium. Kelas Cyanophyta terdapat genus Anacystis. Kelas Chrysophyceae terdapat genus Dinobryon. Dari hasil identifikasi ditemukan Zooplankton dengan 3 kelas dan 3 genus yaitu kelas Branchiopoda yaitu genus Holopedium. Kelas Maxillopoda yaitu genus Copepoda. Kelas Monogononta yaitu genus Ascomorpha. Hasil uji statistika menujukan keragaman plankton pada setiap ulangan berbeda nyata. Kata Kunci: Plankton, Probiotik, Bioflok

2021 ◽  
Vol 4 (2) ◽  
pp. 183
Author(s):  
Siti Khodijah ◽  
Harry Barli ◽  
Wiwit Irawati

The problem in this study is whether the understanding of tax regulations, quality of tax services, tax rates and tax sanctions affect individual taxpayer compliance. This study aims to determine the effect of understanding tax regulations, quality of tax services, tax rates and tax sanctions on taxpayer compliance at the Kebayoran Baru Tiga Tax Office, South Jakarta. This type of research is a quantitative method that uses the Slovin formula as a sample, so that the sample obtained is 100 individual taxpayers. Methods of data collection using survey methods, namely the authors distribute questionnaires directly and using google form. This study can explain the independent variables (tax regulations, quality of tax services, tax rates and tax sanctions) that strengthen or weaken the dependent variable (taxpayer compliance). Based on the results of the SPSS test version 25 of the tests that have been carried out, the t test results indicate that understanding of tax regulations and service quality tax authorities have a positive and significant effect on taxpayer compliance. Meanwhile, tax rates and tax sanctions have no significant effect on taxpayer compliance.AbstrakPermasalahan dalam penelitian ini adalah apakah pemahaman peraturan perpajakan, kualitas layanan fiskus, tarif pajak dan sanksi perpajakan berpengaruh terhadap kepatuhan wajib pajak orang pribadi. Penelitian ini bertujuan untuk mengetahui pengaruh pemahaman peraturan perpajakan, kualitas layanan fiskus, tarif pajak dan sanksi perpajakan terhadap kepatuhan wajib pajak orang pribadi pada Kantor Pelayanan Pajak Pratama Kebayoran Baru Tiga, Jakarta Selatan. Jenis Penelitian ini merupakan metode kuantitatif yang menggunakan rumus slovin sebagai penentuan sampel, sehingga sampel yang didapat yaitu 100 wajib pajak orang pribadi. Metode pengumpulan data menggunakan metode survey, yaitu penulis menyebarkan kuesioner secara langsung dan menggunakan google form. Penelitian ini dapat menjelaskan variabel independen (pemahaman peraturan perpajakan, kualitas layanan fiskus, tarif pajak dan sanksi perpajakan) yang memperkuat atau memperlemah variabel dependen (kepatuhan wajib pajak). Berdasarkan hasil uji SPSS versi 25 dari pengujian yang telah dilakukan, hasil uji t menunjukkan bahwa pemahaman peraturan perpajakan dan kualitas layanan fiskus berpengaruh positif dan signifikan terhadap kepatuhan wajib pajak. Sedangkan tarif pajak dan sanksi perpajakan tidak berpengaruh signifikan terhadap kepatuhan wajib pajak.Kata Kunci: Pemahaman Peraturan Perpajakan; Kualitas Layanan Fiskus; Tarif Pajak; Sanksi Perpajakan; Kepatuhan Wajib Pajak


Author(s):  
Novendawati Wahyu Sitasari ◽  
Yuli Azmi Rozali

The purpose of this study is to determine the effectiveness of the role playing method as an effort to improve teacher knowledge and skills in managing bullying at SD N 11 Duri Kepa. The population and sample in this study were teachers at SD N 11 Duri Kepa, amounting to 19 teachers. The scale of knowledge and skills in handling bullying is based on references from Olweus (1993) and the Teacher Inventory of Skills and Knowledge (TISK) compiled by Horne, Bartolomucci, & Newman (2004). The research method was quasi-experimental with non-randomized one-group pretest-posttest design, and the analysis test used was t-test. Statistical test results obtained by the significance of (p) = 0.014; (p) <0.05, which means that there is an effect of the role playing method on the teacher's knowledge, and the significance result is (p) = 0.920; (p)> 0.05 there is no effect of the role playing method on teacher skills.


Prologia ◽  
2020 ◽  
Vol 4 (1) ◽  
pp. 53
Author(s):  
Rizka Aprilliani ◽  
Muhammad Gafar Yoedtadi

Brand image is the perception and belief held by consumers, such as those in association and embedded in consumers memories. While the notion of interest is the tendency of someone to pay attention to some activities or activities that are liked by individuals. Tonight Shows a program that has an interest in watching the influence of the appearance of the program, and the host of the Tonight Show. This study uses quantitative survey methods for respondents in Taman Royal 2, Tangerang City. The results showed the effect of brand image on the interest in watching the Tonight Show talkshow program, with the results of the correlation coefficient of 0.732. Based on the results of the coefficient of determination test, found the influence of brand image on the interest to watch the Tonight Show talkshow program has a strong influence that is equal to 53.5% and T test results obtained that Ho is rejected and Ha is accepted. Citra merek (brand image) adalah persepsi dan keyakinan yang dipegang oleh konsumen, seperti yang ada dalam asosiasi dan yang tertanam dalam ingatan konsumen. Sedangkan pengertian minat adalah kecenderungan seseorang yang memperhatikan beberapa aktivitas atau kegiatan yang disukai oleh individu. Tonight Show menjadi program acara yang memiliki minat menonton pada pengaruh tampilan acara, dan pembawa acara Tonight Show. Penelitian ini menggunakan kuantitatif dengan metode survey terhadap responden di Taman Royal 2 Kota Tangerang. Hasil penelitian menunjukkan hasil adanya pengaruh brand image terhadap minat menonton program talkshow Tonight Show yang kuat, dengan hasil koefisien korelasi sebesar 0,732. Berdasarkan hasil uji koefisien determinasi, didapati pengaruh brand image terhadap minat untuk menonton program talkshow Tonight Show memiliki pengaruh yang kuat yaitu sebesar 53,5% dan didapatkan hasil uji T bahwa Ho ditolak dan Ha diterima.


Author(s):  
Pesta Pesta Gultom ◽  
Claudie

This study aims to determine how much influence Entrepreneurship Competence and Management Supervision on the Development of PT Ekuator Swarna Sekuritas Medan Branch. The research methodology used is descriptive and explanatory survey methods. The population in this study were 1003 customers of PT Ekuator Swarna Sekuritas Medan Branch. The technique of determining the number of samples in this study was determined using the Slovin formula and amounted to 91 respondents. The t test results show that the Entrepreneurial Competence variable is positively and significantly influenced by the Development of PT Ekuator Swarna Sekuritas Medan Branch and the Management Control variable has a positive and significant effect on the development of PT Ekuator Swarna Sekuritas Medan Branch. Simultaneously affect the dependent variable (Company Development)


2020 ◽  
Vol 7 (1) ◽  
pp. 107-115
Author(s):  
Mohamad Miftachul Ulum

Promosi kesehatan pada sasaran remaja melalui tatanan institusi sekolah sangat efektif untuk pengembangan perilaku hidup sehat. Remaja usia sekolah berada dalam komunitas yang terorganisir yang melaksanakan proses terintegrasi dari pengembangan kemampuan intelektual, sosial dan personal. Penelitian ini dilakukan  2 tahap, tahap pertama metode research dan pengembangan media. Pada tahap kedua pre-eksperimen: The One Group Pretest-Posttest Design. Kenaikan rata-rata jawaban benar dari 25,07 menjadi 29,02 sehingga terdapat selisih jawaban  3,95. Berdasarkan uji statistic paired sample t-test didapatkan hasil p=0,000 (p< 0,005). Dengan demikian terdapat perbedaan sikap  sehat reproduksi sebelum dan sesudah diberikan  intervensi berupa pendidikan kesehatan dengan menggunakan  media edukasi simulasi TAHes. Pembelajaran dengan metode diskusi yang tidak didominasi oleh guru, siswa dapat mengingat 50%, bila belajar disertai dengan melakukan sesuatu kegiatan, dapat mengingat 75%. Praktik belajar dengan cara mengajar, mampu mengingat 90%, oleh karena itu permainan TAHeS diharapkan mampu mengingat 90% karena melibatkan aspek kognitif, afektif dan psikomotor. Health promotion on adolescent targets through the order of school institutions is very effective for the development of healthy living behaviours. School teenagers are in an organized community that carries out an integrated process of developing intellectual, social and personal abilities. This research was conducted in 2 stages, the first stage was research method and media development. In the second stage was pre-experiment: The One Group Pretest-Posttest Design.  The average increased in correct answers from 25.07 to 29.02 so that there was a difference of 3.95 answers. Based on a paired sample t-test statistical test results obtained p = 0,000 (p <0.005). Thus there were behavioural differences regarding reproductive health behaviour before and after the intervention in the form of health education using TAHes education media. The development of snake ladder game media TAHeS (Great and Healthy Child Stairs), was worthy of being a health promotion media to improve reproductive knowledge and healthy attitude of teenagers. Learning with discussion methods that were not dominated by the teacher, students could remember 50%, if learning was accompanied by doing an activity, could remember 75%. The practice of learning by teaching was able to remember 90%. Therefore the game TAHeS is expected to be able to remember 90% because it involves cognitive, affective and psychomotor aspects.


2021 ◽  
Vol 7 (2) ◽  
Author(s):  
Wahid Hasyim ◽  
Basuki Basuki

This Studi aims to examine and analyze the influence of Organizational Culture, Organizational Commitment and the Work Environment simultaneously and simultaneously on Employee Performance at PT United Agro Indonesia. The research method uses survey methods, the type of research uses descriptive quantitative. While the nature of the research is explanatory research. Sampels were taken 86 of a total population of 630 people using the Slovin formula. Data collection was taken using interview observation techniques and questionnaires. The data analysis tool uses multiple Linier regression analysis using the IBM Statistik al version 20.The results of the t test showed that the Organizational Culture variable (X1) had a Parsial effect on the Performance of Employees at PT. United Agro Indonesia, this is evidenced by the results of the Probability or Significance value of 0,000 <0.05 with a confidence level of 95%. With these results, the First hypothesis is accepted. T test results indicate that the variable Organizational Commitment (X2) has a Parsial effect on the Performance of Employees at PT. United Agro Indonesia, this is evidenced by the results of the probability value or significance value of 0.001 <0.05 with a confidence level of 95%. T test results indicate that the Work Environment variable (X2) has a Parsial effect on the Performance of Employees at PT. United Agro Indonesia, this is evidenced by the results of the probability value or significance value of 0.007 <0.05 with a confidence level of 95%.The results of the F test analysis showed that Organizational Culture (X1), Organizational Commitment (X2) and Work Environment (X3) variables simultaneously affected Employee Performance at PT. United Agro Indonesia, This is proven by the Proportional Value or Significant Value of 0,000 <0.05 with a confidence level of 95%, then the fourth hypothesis is accepted.


2020 ◽  
Vol 6 (2) ◽  
pp. 293-310
Author(s):  
Muhammad Darwis Dasopang

Learning objectives can be achieved in various ways, one of which is by implementing learning strategies. This study aims to explore the effectiveness of Theoanthropocentric learning strategies for improving students’ conceptual understanding skills. The research population is all junior high school students (SMP), and the sample comprises students from class VIII. The random cluster sampling technique was used to choose the study’s sample. The data collection method used in this research is the conceptual understanding test. Descriptive and inferential statistics serve for data analysis, including the independent t-test. The results show a significant difference between the conceptual understanding of students who used Theoanthropocentric learning strategies and those who did not use Theoanthropocentric learning strategies. The descriptive statistical test results show that the students in the experimental group have a higher mean score than students in the control group. The independent t-test result has strengthened the statistical test results, namely, 0.00 (p 0.05), from the finding, it follows that the application of theoanthropocentric learning strategies has an enormous impact on improving students’ conceptual understanding skills. Therefore, the Theoanthropocentric approach could be used as a solution to improve students’ conceptual understanding skills.


Author(s):  
Nailufar Firdaus

Development is important for the child'sdevelopment phase. In the preliminary study,60% of 3-9 months infants experienceddevelopmental delays. The purpose of thestudy was to analyze the differences in thedevelopment of infants aged 3-9 monthsbefore the baby spa was conducted with thebaby spa at the Puskesmas SocahBangkalan. The study design used Pre Experimentalwith the approach of one group pretestposttest. The dependent variable is thedevelopment of infants aged 3-9 months andthe independent variable is baby spa. Thepopulation of all infants aged 3-9 months whowere not sick was 25 infants with a sample of16 infants grouped into one group and carriedout baby spa treatment, with a purposivesampling technique. The instruments usedKPSP sheets were then analyzed usingunivariate analysis using the Paired SampleT-Test statistical test. Based on the results of a study beforebaby spa that most babies (62.4%) haddeveloped doubts as many as 10 babies.while after baby spa (50%) babies developdubious development and (50%) theremaining babies develop accordingly, namely8 babies, Statistical test results with PairedSamples developmental T-Test for infantsaged 3-9 months before and after baby spa pValue (0,000) <α (0.05) means that there is adifference in the development of infants aged3-9 months before and after the baby spa. We recommend that health workers canalso do baby spa because baby spa is verybeneficial for children's development.  


TAPPI Journal ◽  
2014 ◽  
Vol 13 (9) ◽  
pp. 51-60
Author(s):  
DENNIS VOSS ◽  
HANS-JOACHIM PUTZ ◽  
SAMUEL SCHABEL

The need for deinking mills to reduce their fresh water consumption has resulted in higher loads of various contaminants in the process water. Lower recovered paper quality also leads to higher contamination levels in the mills. This higher load has an influence on achievable target brightness. The objective of the work was to determine and explain the main reasons for relatively poor deinked pulp quality or poor deinking potential based on the influence of recovered paper composition and process water quality. The process water parameters significantly affect the deinking potential of recovered paper. The test results showed the negative effects of increased water hardness. For standard recovered paper mixtures, flotation selectivity is higher with increasing flotation pH-value. Good results were realized for standard recovered paper with low hardness, low surface tension, and high pH-value. The results for recovered paper containing flexo newsprint could be slightly improved with low hardness, low surface tension, and low pH-value. The results of the test program using design of experiments showed interacting effects of pH-value and surface tension on luminosity and flotation selectivity.


2020 ◽  
Vol 2 (2) ◽  
pp. 72-80
Author(s):  
Niluh Nita Silfia

Partographs are guidelines for childbirth observations that will facilitate labor assistants in first identifying emergency cases and complications for mothers and fetuses. Preliminary survey at the Sigi Community Health Sub-Center (Pustu) of the 8 Pustu midwives found two midwives (25%) to complete a complete partograph, six midwives (75%) incomplete. The purpose of this study was to determine the determinant factors associated with the use of partographs in labor. The design of this study used observational analytic methods with a cross-sectional approach. 24 BPM survey results were obtained with 30 samples of midwives who met the research criteria and data completeness. The sampling technique was by the total population. Data analysis used logistic regression. The multivariate analysis results showed that APN training was the most influential factor in the use of partographs in labor by midwives. Statistical test results obtained a POR value of 37.7 (95% CI 12.1 - 60.2). This study suggests that midwives must have APN certificates to be valid in providing services.


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